Improvements in drilling jigs,申请号GB19300006035-传众专利搜索

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发明名称	Improvements in drilling jigs
摘要
申请公布号	GB348730(A)	申请公布日期	1931.05.21
申请号	GB19300006035	申请日期	1930.02.24
申请人	JAMES GORDON	发明人
分类号	B23B47/28	主分类号	B23B47/28
代理机构		代理人
主权项
地址

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